🐛 Fix: support q-manifest resolution under Bun runtime (#7565)

Previously, the manifest resolution logic only accounted for Node.js, causing issues when building under Bun. This patch updates the runtime check to include "bun" as well, allowing the server to load the q-manifest correctly during SSR builds in Bun environments.

Author: siguici

packages/qwik/src/optimizer/src/plugins/vite.ts

@@ -190,7 +190,7 @@ export function qwikVite(qwikViteOpts: QwikVitePluginOptions = {}): any {
             pluginOpts.input = viteConfig.build?.lib.entry;
           }
         }
-        if (sys.env === 'node') {
+        if (sys.env === 'node' || sys.env === 'bun') {
           const fs: typeof import('fs') = await sys.dynamicImport('node:fs');
 
           try {
@@ -552,7 +552,7 @@ export function qwikVite(qwikViteOpts: QwikVitePluginOptions = {}): any {
           );
 
           const sys = qwikPlugin.getSys();
-          if (tmpClientManifestPath && sys.env === 'node') {
+          if (tmpClientManifestPath && (sys.env === 'node' || sys.env === 'bun')) {
             // Client build should write the manifest to a tmp dir
             const fs: typeof import('fs') = await sys.dynamicImport('node:fs');
             await fs.promises.writeFile(tmpClientManifestPath, clientManifestStr);
@@ -567,7 +567,7 @@ export function qwikVite(qwikViteOpts: QwikVitePluginOptions = {}): any {
         // ssr build
 
         const sys = qwikPlugin.getSys();
-        if (sys.env === 'node') {
+        if (sys.env === 'node' || sys.env === 'bun') {
           const outputs = Object.keys(rollupBundle);
 
           // In order to simplify executing the server script with a common script
@@ -781,7 +781,7 @@ const findQwikRoots = async (
   packageJsonDir: string
 ): Promise<QwikPackages[]> => {
   const paths = new Map<string, string>();
-  if (sys.env === 'node') {
+  if (sys.env === 'node' || sys.env === 'bun') {
     const fs: typeof import('fs') = await sys.dynamicImport('node:fs');
     let prevPackageJsonDir: string | undefined;
     do {